Accession Number:

AD0006899

Title:

EFFECT OF JAW RESTRICTION ON SPEECH INTELLIGIBILITY - AND APPENDIXES 1 THRU III

Descriptive Note:

Corporate Author:

AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

• HANSEN, RONALD G.

Report Date:

1952-09-01

Pagination or Media Count:

33.0

Abstract:

The effect on speech intelligibility of varied amounts of jaw restriction and loudness levels was studied in experiments with 24 speaker and 212 listener subjects. Speech intelligibility forms were read and recorded and subsequently scored by the listeners. Results show that under the conditions of this experiment the effect of jaw restriction on speech intelligibility is negligible.

Descriptors:

• *SPEECH RECOGNITION
• *AVIATION PERSONNEL
• TRAINING
• HEAD(ANATOMY)
• INTELLIGIBILITY

Subject Categories:

• Voice Communications
• Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE